diff --git a/Modules/CPack.cmake b/Modules/CPack.cmake
index 8148aaeae..eb9ba4349 100644
--- a/Modules/CPack.cmake
+++ b/Modules/CPack.cmake
@@ -179,7 +179,7 @@ cpack_set_if_not_set(CPACK_OUTPUT_CONFIG_FILE
 cpack_set_if_not_set(CPACK_SOURCE_OUTPUT_CONFIG_FILE
   "${CMAKE_BINARY_DIR}/CPackSourceConfig.cmake")
 
-cpack_set_if_not_set(CPACK_USE_DESTDIR ON)
+cpack_set_if_not_set(CPACK_SET_DESTDIR OFF)
 cpack_set_if_not_set(CPACK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
 
 cpack_set_if_not_set(CPACK_NSIS_INSTALLER_ICON_CODE "")
diff --git a/Source/CPack/cmCPackCygwinBinaryGenerator.cxx b/Source/CPack/cmCPackCygwinBinaryGenerator.cxx
index 7d2ffb819..e8e1f7f79 100644
--- a/Source/CPack/cmCPackCygwinBinaryGenerator.cxx
+++ b/Source/CPack/cmCPackCygwinBinaryGenerator.cxx
@@ -41,6 +41,7 @@ cmCPackCygwinBinaryGenerator::~cmCPackCygwinBinaryGenerator()
 //----------------------------------------------------------------------
 int cmCPackCygwinBinaryGenerator::InitializeInternal()
 {
+  this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/usr");
   this->SetOptionIfNotSet("CPACK_INCLUDE_TOPLEVEL_DIRECTORY", "0");
   std::vector<std::string> path;
   std::string pkgPath = cmSystemTools::FindProgram("bzip2", path, false);
diff --git a/Source/CPack/cmCPackCygwinBinaryGenerator.h b/Source/CPack/cmCPackCygwinBinaryGenerator.h
index c415f3292..25599bbf6 100644
--- a/Source/CPack/cmCPackCygwinBinaryGenerator.h
+++ b/Source/CPack/cmCPackCygwinBinaryGenerator.h
@@ -34,7 +34,6 @@ public:
   cmCPackCygwinBinaryGenerator();
   virtual ~cmCPackCygwinBinaryGenerator();
 protected:
-  virtual const char* GetInstallPrefix() { return "/usr"; }
   virtual int InitializeInternal();
   int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
diff --git a/Source/CPack/cmCPackCygwinSourceGenerator.cxx b/Source/CPack/cmCPackCygwinSourceGenerator.cxx
index c9062550a..0856452a4 100644
--- a/Source/CPack/cmCPackCygwinSourceGenerator.cxx
+++ b/Source/CPack/cmCPackCygwinSourceGenerator.cxx
@@ -166,7 +166,7 @@ int cmCPackCygwinSourceGenerator::CompressFiles(const char* outFileName,
   return 1;
 }
 
-const char* cmCPackCygwinSourceGenerator::GetInstallPrefix()
+const char* cmCPackCygwinSourceGenerator::GetPackagingInstallPrefix()
 {
   this->InstallPrefix = "/";
   this->InstallPrefix += this->GetOption("CPACK_PACKAGE_FILE_NAME");
diff --git a/Source/CPack/cmCPackCygwinSourceGenerator.h b/Source/CPack/cmCPackCygwinSourceGenerator.h
index a4e4656e3..6be26a597 100644
--- a/Source/CPack/cmCPackCygwinSourceGenerator.h
+++ b/Source/CPack/cmCPackCygwinSourceGenerator.h
@@ -34,7 +34,7 @@ public:
   cmCPackCygwinSourceGenerator();
   virtual ~cmCPackCygwinSourceGenerator();
 protected:
-  const char* GetInstallPrefix();
+  const char* GetPackagingInstallPrefix();
   virtual int InitializeInternal();
   int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
diff --git a/Source/CPack/cmCPackDebGenerator.cxx b/Source/CPack/cmCPackDebGenerator.cxx
index 88a4e25e9..75bf36fec 100644
--- a/Source/CPack/cmCPackDebGenerator.cxx
+++ b/Source/CPack/cmCPackDebGenerator.cxx
@@ -42,6 +42,14 @@ cmCPackDebGenerator::~cmCPackDebGenerator()
 {
 }
 
+//----------------------------------------------------------------------
+int cmCPackDebGenerator::InitializeInternal()
+{
+  this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/usr");
+
+  return this->Superclass::InitializeInternal();
+}
+
 //----------------------------------------------------------------------
 int cmCPackDebGenerator::CompressFiles(const char* outFileName,
   const char* toplevel,
diff --git a/Source/CPack/cmCPackDebGenerator.h b/Source/CPack/cmCPackDebGenerator.h
index 6683f2b4b..fd18c9d6c 100644
--- a/Source/CPack/cmCPackDebGenerator.h
+++ b/Source/CPack/cmCPackDebGenerator.h
@@ -37,10 +37,10 @@ public:
   virtual ~cmCPackDebGenerator();
 
 protected:
+  virtual int InitializeInternal();
   virtual int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
   virtual const char* GetOutputExtension() { return ".deb"; }
-  virtual const char* GetInstallPrefix() { return "/usr"; }
 
 };
 
diff --git a/Source/CPack/cmCPackGenericGenerator.cxx b/Source/CPack/cmCPackGenericGenerator.cxx
index 1987a4dfd..e961357f5 100644
--- a/Source/CPack/cmCPackGenericGenerator.cxx
+++ b/Source/CPack/cmCPackGenericGenerator.cxx
@@ -61,6 +61,7 @@ void cmCPackGenericGenerator::DisplayVerboseOutput(const char* msg,
 int cmCPackGenericGenerator::PrepareNames()
 {
   this->SetOption("CPACK_GENERATOR", this->Name.c_str());
+
   std::string tempDirectory = this->GetOption("CPACK_PACKAGE_DIRECTORY");
   tempDirectory += "/_CPack_Packages/";
   const char* toplevelTag = this->GetOption("CPACK_TOPLEVEL_TAG");
@@ -80,7 +81,14 @@ int cmCPackGenericGenerator::PrepareNames()
   destFile += "/" + outName;
 
   std::string outFile = topDirectory + "/" + outName;
-  std::string installPrefix = tempDirectory + this->GetInstallPrefix();
+
+  bool setDestDir = cmSystemTools::IsOn(this->GetOption("CPACK_SET_DESTDIR"));
+  std::string installPrefix = tempDirectory;
+  if (!setDestDir)
+    {
+    installPrefix += this->GetPackagingInstallPrefix();
+    }
+
   this->SetOptionIfNotSet("CPACK_TOPLEVEL_DIRECTORY", topDirectory.c_str());
   this->SetOptionIfNotSet("CPACK_TEMPORARY_DIRECTORY", tempDirectory.c_str());
   this->SetOptionIfNotSet("CPACK_OUTPUT_FILE_NAME", outName.c_str());
@@ -147,8 +155,6 @@ int cmCPackGenericGenerator::InstallProject()
   this->CleanTemporaryDirectory();
   std::string tempInstallDirectoryWithPostfix
     = this->GetOption("CPACK_TEMPORARY_INSTALL_DIRECTORY");
-  tempInstallDirectoryWithPostfix
-    += this->GetTemporaryInstallDirectoryPostfix();
   const char* tempInstallDirectory = tempInstallDirectoryWithPostfix.c_str();
   int res = 1;
   if ( !cmsys::SystemTools::MakeDirectory(tempInstallDirectory))
@@ -160,23 +166,23 @@ int cmCPackGenericGenerator::InstallProject()
     return 0;
     }
 
-  bool movable = true;
-  if ( movable )
-    {
-    // Make sure there is no destdir
-    cmSystemTools::PutEnv("DESTDIR=");
-    }
-  else
+  bool setDestDir = cmSystemTools::IsOn(this->GetOption("CPACK_SET_DESTDIR"));
+  if ( setDestDir )
     {
     std::string destDir = "DESTDIR=";
     destDir += tempInstallDirectory;
     cmSystemTools::PutEnv(destDir.c_str());
     }
+  else
+    {
+    // Make sure there is no destdir
+    cmSystemTools::PutEnv("DESTDIR=");
+    }
 
   // If the CPackConfig file sets CPACK_INSTALL_COMMANDS then run them
   // as listed
   if ( !this->InstallProjectViaInstallCommands(
-      movable, tempInstallDirectory) )
+      setDestDir, tempInstallDirectory) )
     {
     return 0;
     }
@@ -184,7 +190,7 @@ int cmCPackGenericGenerator::InstallProject()
   // If the CPackConfig file sets CPACK_INSTALL_SCRIPT then run them
   // as listed
   if ( !this->InstallProjectViaInstallScript(
-      movable, tempInstallDirectory) )
+      setDestDir, tempInstallDirectory) )
     {
     return 0;
     }
@@ -193,7 +199,7 @@ int cmCPackGenericGenerator::InstallProject()
   // then glob it and copy it to CPACK_TEMPORARY_DIRECTORY
   // This is used in Source packageing
   if ( !this->InstallProjectViaInstalledDirectories(
-      movable, tempInstallDirectory) )
+      setDestDir, tempInstallDirectory) )
     {
     return 0;
     }
@@ -202,12 +208,12 @@ int cmCPackGenericGenerator::InstallProject()
   // If the project is a CMAKE project then run pre-install
   // and then read the cmake_install script to run it
   if ( !this->InstallProjectViaInstallCMakeProjects(
-      movable, tempInstallDirectory) )
+      setDestDir, tempInstallDirectory) )
     {
     return 0;
     }
 
-  if ( !movable )
+  if ( setDestDir )
     {
     cmSystemTools::PutEnv("DESTDIR=");
     }
@@ -217,9 +223,9 @@ int cmCPackGenericGenerator::InstallProject()
 
 //----------------------------------------------------------------------
 int cmCPackGenericGenerator::InstallProjectViaInstallCommands(
-  bool movable, const char* tempInstallDirectory)
+  bool setDestDir, const char* tempInstallDirectory)
 {
-  (void)movable;
+  (void)setDestDir;
   (void)tempInstallDirectory;
   const char* installCommands = this->GetOption("CPACK_INSTALL_COMMANDS");
   if ( installCommands && *installCommands )
@@ -261,9 +267,9 @@ int cmCPackGenericGenerator::InstallProjectViaInstallCommands(
 
 //----------------------------------------------------------------------
 int cmCPackGenericGenerator::InstallProjectViaInstalledDirectories(
-  bool movable, const char* tempInstallDirectory)
+  bool setDestDir, const char* tempInstallDirectory)
 {
-  (void)movable;
+  (void)setDestDir;
   (void)tempInstallDirectory;
   std::vector<cmsys::RegularExpression> ignoreFilesRegex;
   const char* cpackIgnoreFiles = this->GetOption("CPACK_IGNORE_FILES");
@@ -299,7 +305,6 @@ int cmCPackGenericGenerator::InstallProjectViaInstalledDirectories(
       }
     std::vector<std::string>::iterator it;
     const char* tempDir = tempInstallDirectory;
-// this->GetOption("CPACK_TEMPORARY_DIRECTORY");
     for ( it = installDirectoriesVector.begin();
       it != installDirectoriesVector.end();
       ++it )
@@ -362,7 +367,7 @@ int cmCPackGenericGenerator::InstallProjectViaInstalledDirectories(
 
 //----------------------------------------------------------------------
 int cmCPackGenericGenerator::InstallProjectViaInstallScript(
-  bool movable, const char* tempInstallDirectory)
+  bool setDestDir, const char* tempInstallDirectory)
 {
   const char* cmakeScripts
     = this->GetOption("CPACK_INSTALL_SCRIPT");
@@ -384,10 +389,37 @@ int cmCPackGenericGenerator::InstallProjectViaInstallScript(
 
       cmCPackLogger(cmCPackLog::LOG_OUTPUT,
         "- Install script: " << installScript << std::endl);
-      if ( movable )
+
+      if ( setDestDir )
+        {
+        // For DESTDIR based packaging, use the *project* CMAKE_INSTALL_PREFIX
+        // underneath the tempInstallDirectory. The value of the project's
+        // CMAKE_INSTALL_PREFIX is sent in here as the value of the
+        // CPACK_INSTALL_PREFIX variable.
+        std::string dir = tempInstallDirectory;
+        if (this->GetOption("CPACK_INSTALL_PREFIX"))
+          {
+          dir += this->GetOption("CPACK_INSTALL_PREFIX");
+          }
+        this->SetOption("CMAKE_INSTALL_PREFIX", dir.c_str());
+
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Using DESTDIR + CPACK_INSTALL_PREFIX... (this->SetOption)"
+          << std::endl);
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Setting CMAKE_INSTALL_PREFIX to '" << dir << "'" << std::endl);
+        }
+      else
         {
         this->SetOption("CMAKE_INSTALL_PREFIX", tempInstallDirectory);
+
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Using non-DESTDIR install... (this->SetOption)" << std::endl);
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Setting CMAKE_INSTALL_PREFIX to '" << tempInstallDirectory
+          << "'" << std::endl);
         }
+
       this->SetOptionIfNotSet("CMAKE_CURRENT_BINARY_DIR",
         tempInstallDirectory);
       this->SetOptionIfNotSet("CMAKE_CURRENT_SOURCE_DIR",
@@ -404,7 +436,7 @@ int cmCPackGenericGenerator::InstallProjectViaInstallScript(
 
 //----------------------------------------------------------------------
 int cmCPackGenericGenerator::InstallProjectViaInstallCMakeProjects(
-  bool movable, const char* tempInstallDirectory)
+  bool setDestDir, const char* tempInstallDirectory)
 {
   const char* cmakeProjects
     = this->GetOption("CPACK_INSTALL_CMAKE_PROJECTS");
@@ -517,10 +549,37 @@ int cmCPackGenericGenerator::InstallProjectViaInstallCMakeProjects(
         {
         realInstallDirectory += installSubDirectory;
         }
-      if ( movable )
+
+      if ( setDestDir )
+        {
+        // For DESTDIR based packaging, use the *project* CMAKE_INSTALL_PREFIX
+        // underneath the tempInstallDirectory. The value of the project's
+        // CMAKE_INSTALL_PREFIX is sent in here as the value of the
+        // CPACK_INSTALL_PREFIX variable.
+        std::string dir = tempInstallDirectory;
+        if (this->GetOption("CPACK_INSTALL_PREFIX"))
+          {
+          dir += this->GetOption("CPACK_INSTALL_PREFIX");
+          }
+        mf->AddDefinition("CMAKE_INSTALL_PREFIX", dir.c_str());
+
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Using DESTDIR + CPACK_INSTALL_PREFIX... (mf->AddDefinition)"
+          << std::endl);
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Setting CMAKE_INSTALL_PREFIX to '" << dir << "'" << std::endl);
+        }
+      else
         {
         mf->AddDefinition("CMAKE_INSTALL_PREFIX", tempInstallDirectory);
+
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Using non-DESTDIR install... (mf->AddDefinition)" << std::endl);
+        cmCPackLogger(cmCPackLog::LOG_DEBUG,
+          "- Setting CMAKE_INSTALL_PREFIX to '" << tempInstallDirectory
+          << "'" << std::endl);
         }
+
       if ( buildConfig && *buildConfig )
         {
         mf->AddDefinition("BUILD_TYPE", buildConfig);
@@ -701,6 +760,11 @@ int cmCPackGenericGenerator::Initialize(const char* name, cmMakefile* mf,
     return 0;
     }
 
+  // If a generator subclass did not already set this option in its
+  // InitializeInternal implementation, and the project did not already set
+  // it, the default value should be:
+  this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/");
+
   return result;
 }
 
@@ -927,6 +991,15 @@ const char* cmCPackGenericGenerator::GetInstallPath()
   return this->InstallPath.c_str();
 }
 
+//----------------------------------------------------------------------
+const char* cmCPackGenericGenerator::GetPackagingInstallPrefix()
+{
+  cmCPackLogger(cmCPackLog::LOG_DEBUG, "GetPackagingInstallPrefix: '"
+    << this->GetOption("CPACK_PACKAGING_INSTALL_PREFIX") << "'" << std::endl);
+
+  return this->GetOption("CPACK_PACKAGING_INSTALL_PREFIX");
+}
+
 //----------------------------------------------------------------------
 std::string cmCPackGenericGenerator::FindTemplate(const char* name)
 {
@@ -960,8 +1033,6 @@ int cmCPackGenericGenerator::CleanTemporaryDirectory()
 {
   std::string tempInstallDirectoryWithPostfix
     = this->GetOption("CPACK_TEMPORARY_INSTALL_DIRECTORY");
-  tempInstallDirectoryWithPostfix
-    += this->GetTemporaryInstallDirectoryPostfix();
   const char* tempInstallDirectory = tempInstallDirectoryWithPostfix.c_str();
   if(cmsys::SystemTools::FileExists(tempInstallDirectory))
     {
diff --git a/Source/CPack/cmCPackGenericGenerator.h b/Source/CPack/cmCPackGenericGenerator.h
index 7e0b10a3d..ea59a913e 100644
--- a/Source/CPack/cmCPackGenericGenerator.h
+++ b/Source/CPack/cmCPackGenericGenerator.h
@@ -18,7 +18,6 @@
 #ifndef cmCPackGenericGenerator_h
 #define cmCPackGenericGenerator_h
 
-
 #include "cmObject.h"
 
 #define cmCPackTypeMacro(class, superclass) \
@@ -102,8 +101,7 @@ protected:
   virtual int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
   virtual const char* GetInstallPath();
-  virtual const char* GetInstallPrefix() { return "/"; }
-  virtual const char* GetTemporaryInstallDirectoryPostfix() { return ""; }
+  virtual const char* GetPackagingInstallPrefix();
 
   virtual std::string FindTemplate(const char* name);
   virtual bool ConfigureFile(const char* inName, const char* outName,
@@ -114,13 +112,13 @@ protected:
 
   //! Run install commands if specified
   virtual int InstallProjectViaInstallCommands(
-    bool movable, const char* tempInstallDirectory);
+    bool setDestDir, const char* tempInstallDirectory);
   virtual int InstallProjectViaInstallScript(
-    bool movable, const char* tempInstallDirectory);
+    bool setDestDir, const char* tempInstallDirectory);
   virtual int InstallProjectViaInstalledDirectories(
-    bool movable, const char* tempInstallDirectory);
+    bool setDestDir, const char* tempInstallDirectory);
   virtual int InstallProjectViaInstallCMakeProjects(
-    bool movable, const char* tempInstallDirectory);
+    bool setDestDir, const char* tempInstallDirectory);
 
   bool GeneratorVerbose;
   std::string Name;
diff --git a/Source/CPack/cmCPackOSXX11Generator.cxx b/Source/CPack/cmCPackOSXX11Generator.cxx
index 27c411f4e..6d04b6e76 100644
--- a/Source/CPack/cmCPackOSXX11Generator.cxx
+++ b/Source/CPack/cmCPackOSXX11Generator.cxx
@@ -178,8 +178,6 @@ int cmCPackOSXX11Generator::InitializeInternal()
   this->SetOptionIfNotSet("CPACK_INSTALLER_PROGRAM_DISK_IMAGE", 
                           pkgPath.c_str());
 
-  
-
   return this->Superclass::InitializeInternal();
 }
 
@@ -228,6 +226,7 @@ bool cmCPackOSXX11Generator::CopyCreateResourceFile(const char* name)
 }
 */
 
+//----------------------------------------------------------------------
 bool cmCPackOSXX11Generator::CopyResourcePlistFile(const char* name,
   const char* dir, const char* outputFileName /* = 0 */,
   bool copyOnly /* = false */)
@@ -259,7 +258,7 @@ bool cmCPackOSXX11Generator::CopyResourcePlistFile(const char* name,
 }
 
 //----------------------------------------------------------------------
-const char* cmCPackOSXX11Generator::GetInstallPrefix()
+const char* cmCPackOSXX11Generator::GetPackagingInstallPrefix()
 {
   this->InstallPrefix = "/";
   this->InstallPrefix += this->GetOption("CPACK_PACKAGE_FILE_NAME");
diff --git a/Source/CPack/cmCPackOSXX11Generator.h b/Source/CPack/cmCPackOSXX11Generator.h
index 8d9fef5da..c4c5ae94f 100644
--- a/Source/CPack/cmCPackOSXX11Generator.h
+++ b/Source/CPack/cmCPackOSXX11Generator.h
@@ -40,7 +40,7 @@ protected:
   virtual int InitializeInternal();
   int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
-  virtual const char* GetInstallPrefix();
+  virtual const char* GetPackagingInstallPrefix();
   virtual const char* GetOutputExtension() { return ".dmg"; }
 
   //bool CopyCreateResourceFile(const char* name, const char* dir);
diff --git a/Source/CPack/cmCPackPackageMakerGenerator.cxx b/Source/CPack/cmCPackPackageMakerGenerator.cxx
index 95c1e1d7c..79dac067e 100644
--- a/Source/CPack/cmCPackPackageMakerGenerator.cxx
+++ b/Source/CPack/cmCPackPackageMakerGenerator.cxx
@@ -141,6 +141,7 @@ int cmCPackPackageMakerGenerator::InitializeInternal()
 {
   cmCPackLogger(cmCPackLog::LOG_DEBUG,
     "cmCPackPackageMakerGenerator::Initialize()" << std::endl);
+  this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/usr");
   std::vector<std::string> path;
   std::string pkgPath
     = "/Developer/Applications/Utilities/PackageMaker.app/Contents";
diff --git a/Source/CPack/cmCPackPackageMakerGenerator.h b/Source/CPack/cmCPackPackageMakerGenerator.h
index 17adb148a..21cb4fca2 100644
--- a/Source/CPack/cmCPackPackageMakerGenerator.h
+++ b/Source/CPack/cmCPackPackageMakerGenerator.h
@@ -44,7 +44,6 @@ protected:
     const std::vector<std::string>& files);
   virtual const char* GetOutputExtension() { return ".dmg"; }
   virtual const char* GetOutputPostfix() { return "darwin"; }
-  virtual const char* GetInstallPrefix() { return "/usr"; }
 
   bool CopyCreateResourceFile(const char* name);
   bool CopyResourcePlistFile(const char* name);
diff --git a/Source/CPack/cmCPackRPMGenerator.cxx b/Source/CPack/cmCPackRPMGenerator.cxx
index 4816570f0..18544b85f 100644
--- a/Source/CPack/cmCPackRPMGenerator.cxx
+++ b/Source/CPack/cmCPackRPMGenerator.cxx
@@ -27,6 +27,14 @@ cmCPackRPMGenerator::~cmCPackRPMGenerator()
 {
 }
 
+//----------------------------------------------------------------------
+int cmCPackRPMGenerator::InitializeInternal()
+{
+  this->SetOptionIfNotSet("CPACK_PACKAGING_INSTALL_PREFIX", "/usr");
+
+  return this->Superclass::InitializeInternal();
+}
+
 //----------------------------------------------------------------------
 int cmCPackRPMGenerator::CompressFiles(const char* /*outFileName*/,
   const char* /*toplevel*/,
diff --git a/Source/CPack/cmCPackRPMGenerator.h b/Source/CPack/cmCPackRPMGenerator.h
index 4279c3a82..e4ddf97b1 100644
--- a/Source/CPack/cmCPackRPMGenerator.h
+++ b/Source/CPack/cmCPackRPMGenerator.h
@@ -41,10 +41,10 @@ public:
   virtual ~cmCPackRPMGenerator();
 
 protected:
+  virtual int InitializeInternal();
   virtual int CompressFiles(const char* outFileName, const char* toplevel,
     const std::vector<std::string>& files);
   virtual const char* GetOutputExtension() { return ".rpm"; }
-  virtual const char* GetInstallPrefix() { return "/usr"; }
 
 };